org.jboss.ejb.client.RecoveryOnlyEJBXAResource Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of wildfly-client-all

This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

There is a newer version: 35.0.0.Beta1

Show newest version

/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2013, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.jboss.ejb.client;

import javax.transaction.xa.XAException;
import javax.transaction.xa.XAResource;
import javax.transaction.xa.Xid;

/**
 * An EJB {@link XAResource} which is supposed to be used only during transaction recovery.
 *
 * @author Jaikiran Pai
 */
class RecoveryOnlyEJBXAResource implements XAResource {

    private final EJBReceiverContext receiverContext;
    private final String transactionOriginNodeIdentifier;

    /**
     * @param transactionOriginNodeIdentifier
     *                        The node identifier of the node from which the transaction originated
     * @param receiverContext The EJB receiver context of the target EJB receiver/server which will be used to fetch the Xid(s)
     *                        which need to be recovered
     */
    RecoveryOnlyEJBXAResource(final String transactionOriginNodeIdentifier, final EJBReceiverContext receiverContext) {
        this.receiverContext = receiverContext;
        this.transactionOriginNodeIdentifier = transactionOriginNodeIdentifier;
    }

    @Override
    public void commit(Xid xid, boolean onePhase) throws XAException {
        final XidTransactionID transactionID = new XidTransactionID(xid);
        final EJBReceiver receiver = receiverContext.getReceiver();
        Logs.TXN.debugf("Sending commit request for Xid %s to EJB receiver with node name %s during recovery. One phase? %s", xid, receiver.getNodeName(), onePhase);
        receiver.sendCommit(receiverContext, transactionID, onePhase);
    }

    @Override
    public void end(Xid xid, int i) throws XAException {
        Logs.TXN.debugf("Ignoring end request on XAResource %s since this XAResource is only meant for transaction recovery", this);
    }

    @Override
    public void forget(Xid xid) throws XAException {
        final XidTransactionID transactionID = new XidTransactionID(xid);
        final EJBReceiver receiver = receiverContext.getReceiver();
        Logs.TXN.debugf("Sending forget request for Xid %s to EJB receiver with node name %s during recovery", xid, receiver.getNodeName());
        receiver.sendForget(receiverContext, transactionID);
    }

    @Override
    public int getTransactionTimeout() throws XAException {
        return 0;
    }

    @Override
    public boolean isSameRM(XAResource xaResource) throws XAException {
        if (xaResource == null) {
            return false;
        }
        boolean toReturn = EJBClientManagedTransactionContext.isEJBXAResourceClass(xaResource.getClass().getName());

        if (toReturn) {
            toReturn = xaResource instanceof RecoveryOnlyEJBXAResource;
            if (toReturn) {
                final EJBReceiver receiver = receiverContext.getReceiver();
                RecoveryOnlyEJBXAResource other = (RecoveryOnlyEJBXAResource)xaResource;
                final EJBReceiver otherReceiver = other.receiverContext.getReceiver();
                toReturn = receiver.getNodeName().equals(otherReceiver.getNodeName());
            }
        }
        return toReturn;
    }

    @Override
    public int prepare(Xid xid) throws XAException {
        Logs.TXN.debugf("Prepare wasn't supposed to be called on %s since this XAResource is only meant for transaction recovery. Ignoring the prepare request for xid %s", this, xid);
        return XA_OK;
    }

    @Override
    public Xid[] recover(final int flags) throws XAException {
        final EJBReceiver receiver = receiverContext.getReceiver();
        Logs.TXN.debugf("Send recover request for transaction origin node identifier %s to EJB receiver with node name %s", transactionOriginNodeIdentifier, receiver.getNodeName());
        return receiver.sendRecover(receiverContext, transactionOriginNodeIdentifier, flags);
    }

    @Override
    public void rollback(Xid xid) throws XAException {
        final XidTransactionID transactionID = new XidTransactionID(xid);
        final EJBReceiver receiver = receiverContext.getReceiver();
        Logs.TXN.debugf("Sending rollback request for Xid %s to EJB receiver with node name %s during recovery", xid, receiver.getNodeName());
        receiver.sendRollback(receiverContext, transactionID);
    }

    @Override
    public boolean setTransactionTimeout(int i) throws XAException {
        return false;
    }

    @Override
    public void start(Xid xid, int i) throws XAException {
        Logs.TXN.debugf("Ignoring start request on XAResource %s since this XAResource is only meant for transaction recovery", this);
    }

    @Override
    public String toString() {
        final StringBuilder sb = new StringBuilder();
        sb.append("RecoveryOnlyEJBXAResource");
        sb.append("{receiverContext=").append(receiverContext);
        sb.append(", transactionOriginNodeIdentifier='").append(transactionOriginNodeIdentifier).append('\'');
        sb.append('}');
        return sb.toString();
    }
}